Geaikt-sepabator



J. BENNER.v

Grain Separator.

Patented April 12, 1859.

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UNITED STATES PATENT OFFICE.

JACOB BENNER, OF ALLEGHENY CITY, PENNSYLVANIA.

GRAIN-SEPARATOR.

Specification of Letters Patent No. 23,546, dated April l2, 1859.

To all whom it may concern:

Be it known that I, JACOB BENNER, of the city and county of Allegheny, in the State 0I" Pennsylvania, have invented a new and Improved Grain-Separator; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon, similar letters referring to similar parts.

The nature of my invention, consists in a mechanical arrangement of a suction fan, and a revolving distributing' table furnished with beaters, in connection with a receiving chamber, a separating chamber, a gathering chamber and a collecting chamber, the whole being arranged and combined for the purpose of etfectually separating all foreign matter from wheat and other grain.

Figure l is a face view of the grain separator. Fig. 2 is a cut or sectional view. Fig. 3 is a top view of the revolving distributing table furnished with beaters.

(a) is the trame, (b) is the outside casing, (c) is the inner casing, the plates (l, 2, 3, 4) are division plates which are bolted to the frame (a), (n) is the suction fan, (0) is a pulley, (j) is the distributing table furnished with beaters (s). The tan (n) and the pulley (0) are secured to the perpendicular shaft (g) which is held in its proper position by the yokes (Z and 7c).

is the supply pipe used for feeding grain into the separator.

(c, 6,) are the chutes for the screenings. These chutes are furnished with valves (f) said valves being furnished with weights indicated by the dotted lines marked These weights keep the valves closed. It will be observed that the chutes (e) pass through the outer case and the separating chamber (C) into the collecting chamber B (t) ig lattice work the openings in which are sufficiently large to allow the grain to pass through into the separating chamber, the lower openings of said lattice work being sufficiently large to allow pebbles, nails, &c., to be thrown into the separating chamber.

(r) is a flange made on or secured to the division plate (4). This flange is used for the purpose of brin ing the length of the separating chamber C) down on a line with the top edge of the lattice work indicated by the red 2dotted lines in Fig. 2 and seen at in Fig. l.

It will be observed that the supply pipe (i) passes through the outer case (b), the separating chamber (C), the inner case (c) and the conical bottom (/L) of the collecting chamber (B) into the receiving chamber (D).

Having all the parts arranged as represented in Fig. 2 I will proceed to describe the operation of my improvement in separators. The grain is supplied through the pipe (2') into the receiving chamber (D), from chamber (D) through the opening (7J) down on the revolving distributing table and is thrown from the distributing table out through the open concave or lattice work into the separating chamber by means of the beaters In the separating chamber it comes in Contact with the column of air which is created by the action of the suction fan (n), the air passing into the chamber (C) through the lattice work and up through the separating chamber through opening (m) in division plate (2) into the fan case and out at its mouth (A). By means of this arrangement of the suction fan, separating chamber and opening (0) in plate (2) avacuum is created in the collecting chamber B). The wheat having been thrown out into the separating chamber, and all foreign matter having been loosened by the action of the beaters and by its passage through the lattice work, all foreign matters of less gravity than the grain is carried up through the separating chamber and is deposited in the collecting chamber (B), the very tine dust passing out with the air through the mouth (A) of the tan case, the cleaned grain passing down into the gathering chamber (E) and out through the opening (y). It will be observed that when an amount of dust and other refuse has collected in the chutes (c) and collecting chamber (B) more than equal to the weights on the valves the valves will open and the refuse will instantly be thrown out by means of the conical or convex bottom (7L) of the chamber (B).

Having thus described the nature, construction and operation of my improvement in separators, what I claim as my invention and desire to secure by Letters Patent of the United States is:

l. The arrangement of the receiving chamber (D), separating chamber (C), c01- lecting chamber (B) and gathering chamber (E), when used in connection With the suction fan (n), as herein described and represented and for the purpose set forth.

2. The arrangement of the chutes (e) and JACOB BENNER.

itnesses GEORGE P. STECK, I. DONALDSON. 

